The Internet is becoming the medium of choice for delivering geologic information to both technical users and the general public. The Indiana Geological Survey (IGS) is currently creating a Web-based glacial and bedrock ...

The U.S. Geological Survey (USGS) (2001) mapped structure contours for the tops of each of 20 individual units in intersecting and overlapping glacial morphosequences in Berrien County, Michigan (1,350 km2), as part of the ...

The goal of this research is to develop a model that describes the saturated and unsaturated groundwater flow in Berrien County, Michigan (1,350 km2), an area containing a complex sequence of glacio-lacustrine deposits. ...

The Central Great Lakes Geologic Mapping Coalition (CGLGMC) is a partnership among the state geological surveys of Ohio, Indiana, Illinois, and Michigan, and the U.S. Geological Survey. The mission of the CGLGMC is to ...

The Ohio Department of Natural Resources, Division of Geological Survey is currently mapping the surficial geology of Ohio in three dimensions (3-D) using a modified version of the stack-mapping technique of Kempton (1981). ...

On March 18, 2008 ground water levels rose to 40-year high levels in the Bellevue, Ohio area. Sinkholes, rounded depressions
in the landscape formed by solution of bedrock or collapse of an underlying cavity, which typically ...

A three-dimensional geologic model of the Huntertown glacial aquifer system is being developed. Permeable hydrostratigraphic units within the Huntertown Formation (Quaternary) comprise the principal ground-water resource ...

On March 18, 2008, ground water levels rose to a 30-year high in the Bellevue, Ohio, area. Surface and near-surface geologic conditions combined with unusually high precipitation caused extensive flooding of fields, roadways, ...

Karst terrain forms by dissolution of carbonate rocks, such as limestone or dolomite, or evaporites, such as gypsum or salt, and is characterized by features including sinkholes, disappearing streams, caves, and springs. ...

Karst terrain forms by dissolution of carbonate rocks, such as limestone or dolomite, or evaporites, such as gypsum or salt, and is characterized by features including sinkholes, disappearing streams, caves, and springs. ...

Karst terrain forms by dissolution of carbonate rocks (limestone or dolomite) and occasionally evaporates (gypsum or salt) and is characterized by features such as sinkholes (or sinks), disappearing
streams, caves, and ...

Bedrock geology in the Lima quadrangle ranges from the Ordovician-age Cincinnati group to the Silurian-age Salina Group (Slucher and others, 2006). Derivative mapping shows that four units have potentially economic-quality ...

The surface terrain model of Indiana was created using part of the National Elevation Dataset (NED)—a digital elevation information product for the United States—and newly created digital elevation models (DEMs). New ...